The capacity and availability of computers has been increasing exponentially, and people are connected with others around the world in ways unparalleled in history. The web is J.S. Mill's dream machine to the extent that it enhances people's freedom of expression, pursuit of projects, and interaction with others. But, freedom can come at a cost to justice, and we need to be cautious when confronting concentrations of power and limitations of access in cyberspace as well as understanding some special features of cyberspace such as the invisibility factor and the unreality factor. Ultimately, the freedom of cyberspace may provide the best defense of justice in cyberspace.